package com.example.util;/**
 * @author wangXiao
 */

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

/**
 * @Description: TODO
 * @Author wangXiao
 * @Date 2024/6/21 
 **/
@Component
public class SpringBeanUtil implements ApplicationContextAware {

    private static ApplicationContext applicationContext;
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        if (SpringBeanUtil.applicationContext == null) {
            SpringBeanUtil.applicationContext = applicationContext;
        }
    }

    public static ApplicationContext getApplicationContext(){
        return applicationContext;
    }

    /**
     * 通过name获取 Bean.
     *
     * @return Bean对象
     */
    public static Object getBean(String name) {
        return getApplicationContext().getBean(name);
    }

    /**
     * 通过class获取 Bean.
     *
     * @return Bean对象
     */
    public static <T> T getBean(Class<T> clazz) {
        return getApplicationContext().getBean(clazz);
    }

    /**
     * 通过name,以及Clazz返回指定的Bean
     *
     * @return Bean对象
     */
    public static <T> T getBean(String name, Class<T> clazz) {
        return getApplicationContext().getBean(name, clazz);
    }
}
